频谱仪的使用

1频谱仪使用介绍目录频谱仪的基本常识频谱仪的操作键面设备调测常见频谱图展示3MS2711D电磁波频谱分析仪主要特性信号频率测量范围为0.009MHz~3000MHz信号功率测量范围为：–120dBm~+20dBm屏幕刻度范围：1dB/Div~15dB/Div衰减范围：0dB~51dB可选单位：dBm,dBv,dBmv,dBμv可选线性：伏特，瓦特，对数具有频谱存储和回放功能可测试噪声，功率电平——介绍MS2711D频谱仪频谱仪的基本知识4——介绍MS2711D频谱仪频谱仪的操作界面MS2711D频谱分析仪外观5直放站应用中信号分析-120-110-100-90-80-70-60-50-40-30-20931.2934.4937.6940.8944.0947.2950.4953.6956.8960.0RefLevel:-20.0dBmdB/Div:10.0dBM1M2M3M4SpectrumAnalyzer金叶大酒店下行频普图12Model:MS2711BSerial#:00209054Date:04/20/2002Time:17:52:38RBW:30kHzVBW:10kHzDetection:Pos.PeakCF:946.0MHzSPAN:32.0MHzAttenuation:10dBdBmFrequency(930.0-962.0MHz)M1:-66.02dBm@953.98MHzM2:-77.38dBm@940.025MHzM3:-66.51dBm@959.915MHzM4:-51.37dBm@935.053MHz联通频段移动频段GSM下行信号频谱图6-120-110-100-90-80-70-60-50-40-30-20909.0909.6910.2910.8911.4912.0912.6913.2913.8914.4915.0RefLevel:-20.0dBmdB/Div:10.0dBSpectrumAnalyzer湘汇大酒店上行频谱图2Model:MS2711BSerial#:00209054Date:04/21/2002Time:15:47:07RBW:30kHzVBW:10kHzDetection:Pos.PeakCF:912.0MHzSPAN:6.0MHzAttenuation:10dBdBmFrequency(909.0-915.0MHz)GSM上行信号频谱直放站应用中信号分析7-100-90-80-70-60-50-40-30-20-100870872874876878880882884886888RefLevel:0.0dBmdB/Div:10.0dBM1M2M3SpectrumAnalyzerSZFModel:MS2711ASerial#:00139017Date:01/28/2002Time:15:28:36RBW:1MHzVBW:30kHzDetection:Pos.PeakCF:878.5MHzSPAN:20.0MHzAttenuation:0dBdBmFrequency(868.5-888.5MHz)M1:-23.08dBm@878.475MHzM2:-32.96dBm@877.372MHzM3:-25.35dBm@879.578MHzCDMA基站发送信号直放站应用中信号分析8-90-80-70-60790800810820830840850860870880RefLevel:-53.5dBmdB/Div:4.4dBM1SpectrumAnalyzerCH1Model:MS2711ASerial#:00139017Date:01/05/2002Time:10:54:30RBW:1MHzVBW:30kHzDetection:Neg.PeakCF:833.5MHzSPAN:100.0MHzAttenuation:0dBdBmFrequency(783.5-883.5MHz)M1:-57.14dBm@833.124MHzCDMA室外机（窄带）的底噪本机设备底噪功放噪声白噪声直放站应用中信号分析9-130-120-110-100-90-80-70-60-50-40-30810815820825830835840845850855RefLevel:-30.0dBmdB/Div:10.0dBM1SpectrumAnalyzerJX-DZModel:MS2711BSerial#:00209018Date:04/24/2002Time:14:36:33RBW:1MHzVBW:30kHzDetection:Pos.PeakCF:833.49MHzSPAN:50.0MHzAttenuation:0dBdBmFrequency(808.49-858.49MHz)M1:-52.02dBm@830.169MHzCDMA室内机（宽带）底噪图本机设备底噪功放噪声白噪声直放站应用中信号分析10-130-120-110-100-90-80-70-60-50-40-30824826828830832834836838840842844RefLevel:-30.0dBmdB/Div:10.0dBM1SpectrumAnalyzerDZ1Model:MS2711BSerial#:00209018Date:04/23/2002Time:15:57:24RBW:1MHzVBW:30kHzDetection:Pos.PeakCF:833.6MHzSPAN:20.0MHzAttenuation:0dBdBmFrequency(823.6-843.6MHz)M1:-57.23dBm@829.966MHzCDMA室内机（宽带）底噪图2本机设备底噪功放噪声白噪声直放站应用中信号分析11-100-90-80-70-60-50-40-30-20-100852858864870876882888894900906RefLevel:0.0dBmdB/Div:10.0dBM1M2SpectrumAnalyzerSZF4Model:MS2711ASerial#:00139017Date:01/28/2002Time:16:14:18RBW:1MHzVBW:30kHzDetection:Pos.PeakCF:878.5MHzSPAN:60.0MHzAttenuation:0dBdBmFrequency(848.5-908.5MHz)M1:-22.55dBm@878.575MHzM2:-88.56dBm@908.5MHz基站发送图谱功放噪声白噪声CDMA信号直放站应用中信号分析12-100-90-80-70-60-50-40-30-20-100864867870873876879882885888891894RefLevel:0.0dBmdB/Div:10.0dBM1M2SpectrumAnalyzer6FOUT2Model:MS2711BSerial#:00209018Date:04/23/2002Time:14:15:42RBW:1MHzVBW:30kHzDetection:Pos.PeakCF:878.5MHzSPAN:30.0MHzAttenuation:30dBdBmFrequency(863.5-893.5MHz)M1:-5.68dBm@878.387MHzM2:-15.03dBm@869.816MHzCDMA室内机的下行底噪本机设备底噪功放噪声直放站应用中信号分析13-120-110-100-90-80-70-60-50-40-30-20907908909910911912913914915916917RefLevel:-20.0dBmdB/Div:10.0dBSpectrumAnalyzer华联大厦上行频谱图4Model:MS2711BSerial#:00209054Date:04/21/2002Time:10:05:49RBW:30kHzVBW:10kHzDetection:Pos.PeakCF:912.0MHzSPAN:10.0MHzAttenuation:10dBdBmFrequency(907.0-917.0MHz)GSM室内机底噪图本机设备底噪功放噪声直放站应用中信号分析14-120-110-100-90-80-70-60-50-40-30-20890895900905910915920925930935RefLevel:-20.0dBmdB/Div:10.0dBM1M2SpectrumAnalyzer华悦大酒店上行频谱图1Model:MS2711BSerial#:00209054Date:04/25/2002Time:19:40:35RBW:100kHzVBW:30kHzDetection:Pos.PeakCF:912.0MHzSPAN:50.0MHzAttenuation:10dBdBmFrequency(887.0-937.0MHz)M1:-60.51dBm@915.07MHzM2:-57.49dBm@908.93MHzGSM室内机底噪图本机设备底噪功放噪声白噪声直放站应用中信号分析15-120-110-100-90-80-70-60-50-40-30-20860870880890900910920930940950960RefLevel:-20.0dBmdB/Div:10.0dBM1M2SpectrumAnalyzer圣德拉大酒店上行频谱图2Model:MS2711BSerial#:00209054Date:04/26/2002Time:00:29:44Average:25RBW:1MHzVBW:300kHzDetection:AverageCF:912.0MHzSPAN:100.0MHzAttenuation:10dBdBmFrequency(862.0-962.0MHz)M1:-35.66dBm@909.368MHzM2:-30.92dBm@915.885MHzGSM室内机底噪图本机设备底噪功放噪声白噪声直放站应用中信号分析16-100-90-80-70-60-50-40-30-20-100871.5873.0874.5876.0877.5879.0880.5882.0883.5885.0RefLevel:0.0dBmdB/Div:10.0dBM1M2SpectrumAnalyzerZX2Model:MS2711ASerial#:00125130Date:01/24/2002Time:18:54:40RBW:100kHzVBW:30kHzDetection:Pos.PeakCF:878.5MHzSPAN:15.0MHzAttenuation:0dBdBmFrequency(871.0-886.0MHz)M1:-96.85dBm@871.0MHzM2:-96.85dBm@871.0MHz-100-90-80-70-60-50-40-30-20-100871.5873.0874.5876.0877.5879.0880.5882.0883.5885.0RefLevel:0.0dBmdB/Div:10.0dBM1M2SpectrumAnalyzerZX22Model:MS2711ASerial#:00125130Date:01/24/2002Time:18:55:48RBW:30kHzVBW:30kHzDetection:Pos.PeakCF:878.5MHzSPAN:15.0MHzAttenuation:0dBdBmFrequency(871.0-886.0MHz)M1:-95.66dBm@871.0MHzM2:-95.66dBm@871.0MHz-100-90-80-70-60-50-40-30-20-100871.5873.0874.5876.0877.5879.0880.5882.0883.5885.0RefLevel:0.0dBmdB/Div:10.0dBM1M2SpectrumAnalyzerZX12Model:MS2711ASerial#:00125130Date:01/24/2002